EghtesadOnline: An official at Khatamolanbia Air Defense Headquarters said on Monday that minutes ago the voice of anti-aircraft artillery shots was heard downtown Tehran.

Speaking to IRNA, the source said investigation on the incident is now underway and relative news will be publicized within coming hours. A number of people in Tehran called IRNA and said trace of anti-aircraft shots are still on the sky.It is heard that the voices have been heard around Enghleb Street and Horr Square.